MCQ Book Questions

Q50840. Deficiency of vitamin B6 may occur in

Q50841. ‘Xanthurenic acid index’ is a reliable criterion for the deficiency of the vitamin

Q50842. Epileptiform convulsion in human infants have been attributed to the deficiency of the vitamin

Q50843. Biotin is a coenzyme of the enzyme

Q50844. The coenzyme required for conversion of pyruvate to oxaloacetate is

Q50845. In biotin-containing enzymes, the biotin is bound to the enzyme by

Q50846. A molecule of CO2 is captured by biotin when it acts as coenzyme for carboxyla- tion reaction. The carboxyl group is co- valently attached to

Q50847. Consumption of raw eggs can cause deficiency of

Q50848. The cofactor or its derivative required for the conversion of acetyl CoA to malonyl- CoA is

Q50849. A cofactor required in oxidative decarbox- ylation of pyruvate is

Q50850. The central structure of B12 referred to as corrin ring system consists of

Q50851. The central heavy metal cobalt of vitamin B12 is coordinately bound to

Q50852. Vitamin B12 has a complex ring structure (corrin ring) consisting of four

Q50853. Emperical formula of cobalamin is

Q50854. A deficiency of vitamin B12 causes

Q50855. Vitamin B12 deficiency can be diagnosed by urinary excretion of

Q50856. Subacute combined degeneration of cord is caused due to deficiency of

Q50857. Vitamin required for metabolism of diols e.g. conversion of ethylene glycol to acetaldehyde is

Q50858. Both folic acid and methyl cobalamin (vitamin B12) are required in

Q50859. Folic acid or folate consists of the